TY - JOUR
T1 - An ultracold, optically trapped mixture of 87Rb and metastable 4He atoms
AU - Flores, A.S.
AU - Mishra, H.P.
AU - Vassen, Wim
AU - Knoop, S.
PY - 2017
Y1 - 2017
N2 - We report on the realization of an ultracold (<25 μK) mixture of rubidium (87Rb) and metastable triplet helium (4He) in an optical dipole trap. Our scheme involves laser cooling in a dual-species magneto-optical trap, simultaneous MW- and RF-induced forced evaporative cooling in a quadrupole magnetic trap, and transfer to a single-beam optical dipole trap. We observe long trapping lifetimes for the doubly spin-stretched spin-state mixture and measure much shorter lifetimes for other spin-state combinations. We discuss prospects for realizing quantum degenerate mixtures of alkali-metal and metastable helium atoms.
Graphical abstract
AB - We report on the realization of an ultracold (<25 μK) mixture of rubidium (87Rb) and metastable triplet helium (4He) in an optical dipole trap. Our scheme involves laser cooling in a dual-species magneto-optical trap, simultaneous MW- and RF-induced forced evaporative cooling in a quadrupole magnetic trap, and transfer to a single-beam optical dipole trap. We observe long trapping lifetimes for the doubly spin-stretched spin-state mixture and measure much shorter lifetimes for other spin-state combinations. We discuss prospects for realizing quantum degenerate mixtures of alkali-metal and metastable helium atoms.
Graphical abstract
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U2 - 10.1140/epjd/e2017-70675-y
DO - 10.1140/epjd/e2017-70675-y
M3 - Article
SN - 1434-6060
VL - 71
JO - European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics
JF - European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics
IS - 49
M1 - 49
ER -